Cushman 2
Mason County, Washington · EIA plant ID 3915 · Operator: City of Tacoma - (WA)
Nameplate85MWSummer 94 MW
Generators5in service
Net generation160GWh12 mo to Dec 2025
Capacity factor20%hydro units, summer MW
Heat rate—thermal plants only
First online1930
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), hydro units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 144.9 | 20.4% | — |
| 2002 | 271 | 38.2% | — |
| 2003 | 261.4 | 36.8% | — |
| 2004 | 119.9 | 16.9% | — |
| 2005 | 150.3 | 21.2% | — |
| 2006 | 271.2 | 38.2% | — |
| 2007 | 241.8 | 34.1% | — |
| 2008 | 118.9 | 16.7% | — |
| 2009 | 33.1 | 4.7% | — |
| 2010 | 236.9 | 30.0% | — |
| 2011 | 253.2 | 32.1% | — |
| 2012 | 153 | 19.4% | — |
| 2013 | 141.2 | 17.3% | — |
| 2014 | 225.2 | 27.5% | — |
| 2015 | 163.8 | 20.0% | — |
| 2016 | 320.9 | 39.0% | — |
| 2017 | 229.7 | 28.0% | — |
| 2018 | 175.7 | 21.4% | — |
| 2019 | 102.8 | 12.5% | — |
| 2020 | 152 | 18.5% | — |
| 2021 | 208.8 | 25.5% | — |
| 2022 | 158.9 | 19.4% | — |
| 2023 | 168.5 | 20.5% | — |
| 2024 | 179.2 | 21.8% | — |
| 2025 | 160.5 | 19.6% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 31 | Conventional Hydroelectric | HY | 27 | 30 | Dec 1930 | Operating | — | coming soon |
| 32 | Conventional Hydroelectric | HY | 27 | 30 | Aug 1931 | Operating | — | coming soon |
| 33 | Conventional Hydroelectric | HY | 27 | 30 | Dec 1952 | Operating | — | coming soon |
| 34 | Conventional Hydroelectric | HY | 1.8 | 1.8 | Mar 2013 | Operating | — | coming soon |
| 35 | Conventional Hydroelectric | HY | 1.8 | 1.8 | Mar 2013 | Operating | — | coming soon |
Owner / operator
Operator: City of Tacoma - (WA). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City of Tacoma - (WA) | 100.0% | 85 MW |
Nearby plants
Within 80 km.
| Cushman 1 | 50 MW | 7.3 km |
| Lilliwaup Falls Generating | 1 MW | 11.7 km |
| Wynoochee | 13 MW | 33.5 km |
| Rocky Brook Hydroelectric | 2 MW | 42.2 km |
| Grays Harbor Energy Facility | 715 MW | 50.7 km |
| WestRock (WA) | retired | 56.4 km |